Leetcode 119. Pascal's Triangle II (Easy) (cpp)
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Leetcode 119. Pascal's Triangle II (Easy) (cpp)
Tag: Array
Difficulty: Easy
/*119. Pascal's Triangle II (Easy)Given an index k, return the kth row of the Pascal's triangle.For example, given k = 3,Return [1,3,3,1].*/class Solution { public: vector<int> getRow(int rowIndex) { vector<int> res(1, 1); if (rowIndex == 0) { return res; }for (int i = 1; i <= rowIndex; i++) { vector<int> tmp = res; res.clear(); res.push_back(1); for (int i = 0; i < tmp.size() - 1; i++) {res.push_back(tmp[i] + tmp[i + 1]); }res.push_back(1); } return res; } };
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